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Table 1 Summary of the MLVA results

From: Genetic diversity of livestock-associated MRSA isolates obtained from piglets from farrowing until slaughter age on four farrow-to-finish farms

   Farm
   Farm A Farm B Farm C Farm D
MLVA cluster Dominant MLVA type(s)a # MLVA types in cluster # isolates in cluster/total # MLVA types in cluster # isolates in cluster/total # MLVA types in cluster # isolates in cluster/total # MLVA types in cluster # isolates in cluster/total
A 32-46-38-38-2 9 113/135 - - - - - -
B 33-57-37-7-3 -c - 16 89/155 5 66/355 12 157/326
33-57-37-6-3
C 34-57-34-7-3 - - - - 15 105/355 - -
D 34-59-38-8-4 - - - - 4 57/355 6 131/326
E 35-59-35-8-4 - - - - 4 54/355 - -
F 32-55-35-5-3 - - 4 12/155 - - - -
G 33-57-36-7-3 - - 2 11/155 - - - -
Other clustersb   8 14/135 11 11/155 18 20/355 9 12/326
Non-clustered   7 8/135 24 32/155 48 53/355 22 26/326
  1. aVNTR code of the repeat region of the 5 genes clf A, clf B, sdr C, sdr E, and SIRU21.
  2. bThere are 3, 5, 9, and 4 other clusters on farm A to D, respectively.
  3. c-: not detected on the farm.
  4. For each of the seven dominant clusters (=related MLVA types grouped together), the dominant MLVA type(s) is/are given. Per farm, the dominant cluster(s) is indicated. MLVA clusters containing less than 10 isolates were grouped as "other clusters" (3, 5, 9, and 4 clusters on farm A to D, respectively). Last, the number of isolates belonging to a non-clustered MLVA type is given. In addition, the number of MLVA types belonging to each cluster and the number of isolates per cluster are shown per farm.